DDC124EH-7

Overview

The DDC124EH-7 is an NPN pre-biased small signal dual surface mount transistor from Diodes Incorporated, housed in a SOT-563 package. It integrates two NPN transistors with built-in biasing resistors R1 and R2, both rated at 22kΩ. The device features epitaxial planar die construction and operates within a supply voltage range of up to 50V. Maximum output current per transistor is 30mA, with a total maximum IC of 100mA. Power dissipation is limited to 150mW, and the junction temperature range spans from -55°C to +150°C. The component is lead-free, RoHS compliant, and halogen-free.

Feature Summary

• Integrates dual NPN transistors with fixed internal biasing resistors to simplify circuit design.
• Utilizes epitaxial planar die construction for reliable performance in surface mount applications.
• Manufactured as a totally lead-free, fully RoHS compliant, and halogen-free green device.

Applications

• Switching circuits requiring integrated biasing components
• Driver stages for small signal amplification
• Logic interface circuits converting between different voltage levels

Procurement Notes

Verify the specific ordering suffix '-7' corresponds to the tape and reel packaging configuration containing 3,000 units per reel. Confirm that the 'H' suffix indicates the standard SOT-563 case style and compliance with UL flammability classification 94V-0. Ensure procurement channels are authorized to maintain warranty validity and traceability according to Diodes Incorporated policies.

Selection Notes

Select this component when a dual NPN configuration with predefined 22kΩ base resistors is required. Compare against complementary PNP types like the DDA series if symmetrical switching is needed. Verify that the 30mA per transistor limit and 150mW power dissipation meet the thermal and current demands of the target application environment.

Part Context

This part belongs to the DDC (XXXX) H family of pre-biased transistors offered by Diodes Incorporated. Other variants in this series include DDC144EH, DDC143EH, and DDC114YH, which differ primarily in their internal resistor values and maximum current ratings. All share the same SOT-563 mechanical footprint and general electrical characteristics.

Replacement Considerations

Direct substitutes within the same family include DDC144EH or DDC114EH, provided the resistor values match the circuit requirements. For complementary functionality, consider the DDA series. Ensure any replacement maintains the SOT-563 package dimensions and thermal resistance characteristics.